Books by Percy George Hamnall Boswell
Muddy sediments
The Middle Silurian rocks of N
The Middle Silurian rocks of North Wales
The geology of the country aro
The geology of the country around Ipswich
A comparison of British and Am
A comparison of British and American foundry practice
A supplementary memoir on Brit
A supplementary memoir on British resources of sands and rocks used in glass-manufacture